The same functionality in Perl: https://www.inkling.com/read/programming-perl-christiansen-4th/chapter-4/the-ellipsis-statement https://www.inkling.com/read/pro

The same functionality in Perl: https://www.inkling.com/read/programming-perl-christiansen-4th/chapter-4/the-ellipsis-statement https://www.inkling.com/read/programming-perl-christiansen-4... It's a fun feature but saying it's the main reason to upgrade to Python 3 is going a bit far. I don't see how it's much different to something like # TODO: implement this method! or raise NotImplementedError if you don't want it to be invoked.